Affected pin

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 Porsche Boxster, 2003 Porsche Boxster, 2002 Porsche Boxster, 2001 Porsche Boxster, and 2000 Porsche Boxster. However, it is still accessible from the selected car via links, so may be relevant.

External BOSE amplifier, plug A, pin 24, pin 29, pin 25, pin 38

Fig 1: Identifying Pins Of 8003 External BOSE Amplifier

Courtesy of PORSCHE OF NORTH AMERICA, INC.